The Big Hoss Intake Manifolds are the only purpose-built manifolds
created for a Duramax. Big Hoss replaces the factory's crude
clamshell intake with a tuned 16-port manifold assembly that
provides tremendous flow and uniform air distribution for more
available power at a given boost level.

The Big Hoss Intake Manifold is the world's first high-performance
manifold for a Dodge Cummins common rail. It provides tremendous
flow and uniform air distribution for more available power at
a given boost level. Big Hoss allows porting of the intake ports.

Includes:

Intake
manifold and mounting hardware

Boost
hose

Clamps and
retention hardware

Dipstick
tube and wire loom relocation hardware

Installing
the Banks Big Hoss manifold requires removing the cylinder head,
disassembly and removal of all injection and valve train components,
sawing off the intake portion of the cylinder head, and re-machining
the head to accept the manifold. Persons performing this work
should be familiar with engine disassembly and assembly procedures,
and should have a shop manual for the engine and vehicle to
be modified

NOTE: "Legal in California only for racing
vehicles which may never be used upon a highway"